base64 to binary

Decodes base64 string to and from array of bytes or ASCII string.
Suitable for working with binary data that cannot be represented as ASCII string.
Most similar extensions and online tools only try to work with ASCII and display some gibberish when non-printable characters are encountered.
Decode examples:
In: DwCgAAAkAAAeAAA=
Out: 15 0 160 0 0 36 0 0 30 0 0
Encode examples:
In: hello world
Out: aGVsbG8gd29ybGQ=